Relativity physics - When you talk about any Planet or Star and say that is 100 light years away from planet earth... Then no wonder many peoples Would think about what is
![Astronomy Magazine on Twitter: "Astronomers measure things in light-years, astronomical units, and solar masses. Is it time to stop? https://t.co/nPuCPQ3Wtc https://t.co/oNTrCNpmnw" / Twitter Astronomy Magazine on Twitter: "Astronomers measure things in light-years, astronomical units, and solar masses. Is it time to stop? https://t.co/nPuCPQ3Wtc https://t.co/oNTrCNpmnw" / Twitter](https://pbs.twimg.com/media/Db-qZOoW0AEFa4j.jpg)
Astronomy Magazine on Twitter: "Astronomers measure things in light-years, astronomical units, and solar masses. Is it time to stop? https://t.co/nPuCPQ3Wtc https://t.co/oNTrCNpmnw" / Twitter
![Deduce relation b/w astronomical unit, light year, par sec - Physics - Physical World - 13666987 | Meritnation.com Deduce relation b/w astronomical unit, light year, par sec - Physics - Physical World - 13666987 | Meritnation.com](https://s3mn.mnimgs.com/img/shared/content_ck_images/ana_qa_image_57b42397e039c.png)